长春市草坪杂草种类及其发生规律

The variety and occurrence regularity of lawn weeds in Changchun City, China

长春市草坪常见杂草有28种,分属于14个科,以菊科、禾本科杂草为多。主要杂草有稗草、狗尾草、马唐、荠菜、苦荬菜、反枝苋、马齿菜、藜。7～9月是杂草危害的高峰期。杂草的分布、危害与草坪的养护水平、播种方式、除草状况有关。雨水、回填土来源、温度与光照是影响杂草消长的主要因子。

There are 28 common lawn weeds in Changchun City, China, which belong to 14 families, respectively. Among of them, the composite family and grass family are more then others. The weeds harm peaked from July to September, their distribution and harmful degree have a bearing in the maintaining level, sowing way and weeding state of the lawn. Moreover, rainwater, the sources of backfill, temperature and light are all main factors impacting on growth and decline of the weeds.